Cylinder Head Repair.
If valve guides are in need
Insert Mandrel (3) into chamber side of valve guide and drive guide out of
cylinder head (4).
Place new locating ring on valve guide and drive longer end of guide into bore
from the rocker arm side.
Drive in until locating ring seats in guide bore.
Place new valve seat (5) on drift with chamfered side up and drive seat into
recess of cylinder head (4).
Ensure that seal is fully inserted.
After head cools, reem valve guides using special 8.0 mm (0.3149 in)
Reseat valve seats.
Install valve guides (figure 6-2, 9) and locating rings (8).
Install valves (6 and 7) into cylinder head (1).
Install valve rotor or spring seat (5).
spring caps (3).
tapered valve spring keepers (2).